#app .main{
	width: 600px;
	margin-left:-300px;
	margin-top: 70px;
	position: absolute;
	left: 50%;
}
#app .main>input{
	margin-top: 20px;
}
#app .main>textarea{
	margin-top: 20px;
	height: 400px;
	width: 800px;
}
#app .main>button{
	margin-top: 20px;
	height: 34px;
	width: 100px;
}
.banner{
	position: fixed;
	top:0px;
	width: 100%;
	height: 50px;
	background: #EFEFEF;
	text-align: center;
	line-height: 50px;
	font-size: 22px;
	z-index: 100;
}
